Clutch.



C. SCHMIDT.

CLUTCH.

APPLIoATIoN FILED JAN.15. 190s.

926.1 41 l Patented June 29, 1909.

2 SHEETS-SHEET 1.

1 '9M @mw/MW! www@ m7 C. SCHMIDT.

CLUTCH.

APPLIOATION FILED JAN. 15, 190e.

Patented June 29, 1909.

2 sums-sum' a.

. l vzven'ov UNTED STATES PATENT OFFME,

CHARLES SCHMIDT, OF CLEVELAND, OHIO, ASSlGNOlt TO THE PEERLESS MOTOR UAR .COM-

PANY, OF CLEVELAND, OHIO, A CORPORATION Ol" WEST VlflltllNIA.

CLUTCH.

Specication of Letters Patent.

Patentes; June '29, reos.

Applioa'ion filed January 16, 1996. Serial No. 286,10.

To all whom it may concern:

it known that l, CHARLES SCHMIDT, n Citizen of the Republic ot' F rance, residing at Cleveland, in the county of Cuyahoga and o `itate of Ohio, have invented a certain new sind useful Improvement in Clutches, of which the Jollow'in is a full, clear, and exact description, reverence being had to the accompanyingdrawings. The invention belongs to the type or olntohes which employan expaneihle split ring; and the clutch shown in the drawing in which the invention is embodied, is designed especially for use on automobiles -for connecting .the engine shaft with the transmission mechanism.

In the drawings, yFigure l is an end view of the clutch mechanism, omitting the cylind'rical flauwe with which the split ring is to enga v Big. 2 is a diaxnetrieal section of the o ntch in the plane indicated by'line 2--2 of ,il l, said cylindrical flange and the. -shaft which carries it hoin'gshown. di L. 3 is ,a diametrioal section on the plane infioatedjby line 3-l3 ofFig. i. Fig. 4 .is n sectional View on line ot Fig; l, thropgh'the edges of the drum which supyports the split ring; also showing the oonnectionbetwe'en theff drinn and the end of the ring. "y

Referring to the arts by letto-rs, A 'represents the driving' shaft, and C a rfiy wheel attached thereto having the cylindrical flange c. f -Breprosents the ehitjh drum which is ro- -ttably mounted in axial elinenient with .said` shaft" and within said .cylindrical flange, di n intended to e a non-rotti :1 with the power 40 transmitting rnechanisin.'l 2in the construetion shown the drum is rotatively mounted upon the projecting end ef. of the engine shagft. Embraoinfr this drum and lying he! tween it and sait cylindrical Harige is split rinq E: This ring is fixed one end to the rum. .As shown this end is pro- 'vded With a lug e which extends through and is substantiallyr fitted to a. slot in the drum, land this lug is attached to the drum 5 0 by' a screw e', which engages with lug /i2 on the inner periphery of said drum. A.

similar bracket lug e2 is secured to the other end of `said rinb, and projects through an .elongated slot L? in the drum, in which slot 5o it has a'considerable'eircun'rferential .move- ,oted on a parallel axis to a lug 54, which is CIK fixed to the drum. The tl'ireadod socket in ene of these sleeves has a right handed thread, and that in the other sleeve has a lo t handed thread.

(il re resente an expanding screw which hue rig-it handed threads at one end and 7 leli't handed threads at the other end, which threads respectively Screw into the threaded sockets of the two sleeves F and F. Between these two threaded portions the screw is.,provided with a worin wheel gi. E1nbraeing this worm wheel and rotatable upon the screw G is a casing ll having an arm L projecting inward toward the axis of the clutch. Mounted in the casing:r is worin J in mesh with said worin wheel. The end ot' the worin projects out through a hole /L in the lusing', and squared or slotted for the engagement of a suitable tool by means oit' which' it can be turnet. and the relative position of the screw and its operating arm adjusted.

ing sleeve .l havinfY three laterally projectingr arms, to wit, t o arm ft, which is connected by inea-ns of a link l'ri with the operating arm It; and two arms/u', 7:2. `By moving this sleeve inward upon said hub the screw (il will be caused to turn in that direction which will separato the two sleeves l", l1", and thereby expand the ring E and lijn-ee it into engagement with the ange c.

movin g this sleeve in the contrary direction the ring will loe contracted upon the drum and withdrawn from engagement with said flange. The sleeve is moved in the last nnined'direction hy .means of springs N which are compressed between the head of the drum and the two arms 7c lug respectively, said spring acting; to expand and thereby to move said sleeve,

Any suitable mechanism .may be employed to move the sleeve in opposition to the syning'. ln the construction shown a ring l. loosely fitted into an annular groove4 in said sleeve, which ring has arms p, p,

'grooves forminglrace Ways for the balls R2.

The ring R lies against the end of the en gine shaft. The ring R lies against a disk 'll slidable in the bore of said hub, which disk is secured to the end of a screw t, which screws axially through the closed end of a stem b ot' said hub, this screw t being provided .with a lock nut t. The

balls may be in the embrace of a holder P2.'

I claim:

1. In a friction clutch, the combination ci a split ring and its support, with a rotary oscillating device for changing the diameter of said ring, a Worm wheel secured` to said oscillating device. an operating lever rotatably mounted on said device, a 'Worin mounted on said lever in engagement with said Worm vwheel for adjustably connecting said oscillating device and lever, and mechanism for operating said lever.

In a friction clutchythe combination of a clutch drum, a split ring embracing the same and having one endr secured to the drum, a lug secured to the other end of sa1d ring and passing through ran elongated guide. slot in the drum, .a threaded sleeve pivotally connected with the inner projecting part of said lug. another threaded sleeve pivotally connected with said dru1n,-tl1e Vthreads in said two sleeves beingT respeceeenfn tively right handed and left handed, with a screw having' oppositely threaded ends engaging in saidsleeves, and means for turni ing said screw in either direction.

3. In ariction clutch, the combination ci a clutch drum, a split ring embracing the.

same and having' one end secured to said drum, a lug secured to the. other end of' said ring .and passing through an elongated slot in sa'id drum, a threaded sleeve pivotally connected with the inner projecting part of said lug, another threaded sleeve pivotaiiy connected With said drumwthe threads in said two sleeves being respectively right' handed and left lianded,-With a screw haw ing oppositely threaded ends engaging' .in said sleeves, a worm Wheel fsecured to the 111-' termedlate part ot said screw, a lever rotatably niountedupcn said screw and haring;

a casing` portion which embraces said worm Wheel, a. Worm mounted in said casing; portion in engagement with said worm wheel, and mechanism for operating said lever.

t. In a friction clutch, the combination ot ka drum, a split ring embracing' the same, a

sleeve lslidable axially with respect to said drum, mechanism operated by said Sleen-'e for expanding and contracting said sptt ring', and arms secured to said sleeve, and

.expanding coil springs compressed between said arms and the drum head and act-ing' to move the sleeve in that direction which will cause the'unclutchinsr movement of the ring? operating mechanism.

'In testimony whereof, hereunto ailix my signature in the presence of two witnesses.

- CHARLES SUllMlD'i. lWitnesses z E. B. GILonnrs'r, El L. 'fi-unieron. 

